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Mediation of conifer root growth by mycorrhizal fungi and plant growth regulators

Creator:: Scagel, Carolyn F.
Abstract:: Many mycorrhizosphere microorganisms can produce plant growth regulating compounds in vitro. Plant growth regulating compounds are known to mediate root growth and development. In reforestation practices, conifer tree seedling growth and survival are linked to rapid root growth and development after outplanting. Multifactorial experiments were conducted to document variations in...
Resource Type:: Dissertation
Full Text:: plant growth regulators AN ABSTRACT OF THE THESIS OF Carolyn F. Scagel for the degree of Doctor of

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Creator:: Ames, Robert Norman
Abstract:: A study was conducted to characterize the vesicular-arbuscular (VA) mycorrhizal fungi of commercially grown Easter lily. Monthly field soil and root samples were collected from March through September, 1975, from five fields in the coastal area of southern Oregon and northern California. Soil sievings were inoculated onto clover, onion and...
Resource Type:: Masters Thesis
Full Text:: mycorrhizae on trap plants, and was subsequently inoculated onto lilies. More F. oxysporum was recovered

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Creator:: Meyer, Julie (Julie Rae)
Abstract:: The influence of vesicular-arbuscular mycorrhizae (VAM) on populations of general taxonomic and functional groups of naturally-occurring rhizosphere bacteria and actinomycetes associated with roots of sweet corn (Zea mays var. rugosa) and subterranean clover (Trifolium subterraneum L.) was assayed using selective media. Sporangial production by Phytophthora cinnamomi was also used as...
Resource Type:: Masters Thesis
Full Text:: colonized by a fungus would be the same as one which was not (Hayman, 1983). Both a change in root

Latent viruses in apple varieties in Oregon nurseries

Creator:: Dimalla, Gerard George
Resource Type:: Masters Thesis
Full Text:: beds gave a negative reation. Most of the Merton Mailing beds, however, were negative. Some of the

Inoculation of container-grown plants with vesicular-arbuscular mycorrhizae

Creator:: Biermann, Brenda Joan, 1954-
Abstract:: Studies were conducted on inoculation of container-grown plants with vesicular-arbuscular (VA) mycorrhizae. Intraradical vesicles formed in colonized roots were found to serve as propagules and significantly contribute to the infectivity of these roots. A procedure was developed for separating intraradical vesicles from roots; isolated intraradical vesicles were able to colonize...
Resource Type:: Dissertation
Full Text:: many ecosystems (Abbott and Robson, 1981; Hayman and Stovold, 1979; Kianmehr, 1981; Read et al., 1976

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

Creator:: McGraw, Anne-Cressey
Resource Type:: Masters Thesis
Full Text:: , 73, 77, 92). Hayman (39) found the greatest VA mycorrhizal infection in fields with the highest

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Creator:: Parke, Jennifer Lee
Resource Type:: Dissertation
Full Text:: made this study possible. Dr. Kenneth F. Baker gave guidance and encouragement; I appreciate the

Factors affecting germination of endomycorrhizal spores

Creator:: Daniels, Barbara Ann
Abstract:: Four isolates of Glomus mosseae, collected from diverse geographic locations, were pot cultured on varied host plants or stored in the same soil as collected. Spores of three isolates failed to germinate on any of five agar media while the fourth germinated well on all media. Lack of germination on...
Resource Type:: Dissertation
Full Text:: thousands of F 16 clean, uniform, easily harvested spores for experimental inoculum. Pot cultures need

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Creator:: Kough, John Lawrence
Abstract:: The colonization of several species of plants by vesicularar-buscular mycorrhizae (VAM) was studied to determine how host, soil, or symbiont factors interacted to enhance growth of the host plant. Seedlings of two species of the Cuppressaceae and two of the Taxodiaceae formed VAM; colonization significantly improved growth. This response to...
Resource Type:: Dissertation
Full Text:: convenient means to measure the activity of VAM fungi is to clear and stain roots (Phillips & Hayman, 1970

Variation in plant response to inoculation with different isolates of vesicular arbuscular mycorrhizal fungi

Creator:: Ianson, David C.
Resource Type:: Dissertation
Full Text:: ., 1982; Hayman et al., 1982; Allen et al., 1984). In addition, monoculture cropping systems common in

ScholarsArchive@OSU

Mediation of conifer root growth by mycorrhizal fungi and plant growth regulators

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Latent viruses in apple varieties in Oregon nurseries

Inoculation of container-grown plants with vesicular-arbuscular mycorrhizae

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Factors affecting germination of endomycorrhizal spores

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Variation in plant response to inoculation with different isolates of vesicular arbuscular mycorrhizal fungi

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